Step 2: We have a formula for calculating the average slope of a function that is: A = (f(x) âf(a)) /(x â a), 'A' represents the average slope. Here (x-a) is used to represent the change in input values and f(x) â f(a) is used to denote the change in output of the function f(x).
This value is expressed in hours and represents the number of hours before the lamp is at half its original brightness. The expected life of a lamp will vary based on the lamp technology and the projector; however, most projectors offer about 2000 hours. The lamp's success rate is based on a bell curve, so that a majority of (but not all) lamps will meet the lamp life hours specified.
How Long Does a DLP Projection Lamp Usually Last? It is safe to list the lamp life for most DLP front and rear projection televisions between 1,000 and 2,000 hours. I know thatâs a cop-out, but itâs hard to nail down a direct length of time. Some lamps might last only 500 hours while others may last 3,000 hours.